Restoration, Waterproofing and H2S Protection of Digester Tanks, Kitchener, Ontario
| Project: | Digester, Kitchener, Ontario,Canada |
| Designer: | AECOM |
| Owner: | |
| Contractor: | JDCMI,Ontario |
| Products: | Cem-Kote Flex CR & Gem-Plast TC |
| Objective: |
Concrete repair, Waterproofing and H2S protection of Digester Tanks in Kitchener, Ontario, was carried out in 2014, using Cem-Kote Flex CR. The surface of concrete was sandblasted to obtain a clean and profiled surface satisfying CSP # 3 as per ICRI guidelines. Concrete imperfections and delaminations were repaired with Gem-Plast TC, a leveling cementitious polymer-modified plaster that can be applied at 3-6 mm (1/8”-1/4”) thickness. Two coats of Cem-Kote Flex CR were applied to provide waterproofing and chemical protection against micro-biologically formed sulfuric acid (H2S). The repair is shown in Figures 1 and 2. |
Figure 1 Application Cem-Kote Flex CR Interior Walls of Digester
Figure 2 Digester Interior During the Repair